Number Cruncher Rx
53mm x 17mm
The width of each lens x the width of the nose bridge in millimeters. This measurement is especially important for optical professionals.
About Number Cruncher Rx
Calling all calculator jockeys: you won’t find a cooler frame anywhere. Trust us, we’ve done the math. Our high quality prescription lenses are scratch resistant with no distortion – bye, bye, eyestrain! They feature anti-reflective coating for a cleaner look and a clearer view. We offer several easy options for submitting your prescription during checkout, as well as 90 day hassle-free returns on all prescription eyebobs. Love them or get your money back. (But trust us, you’re going to love them.)